All categories

2 years ago

How do i construst a histogram?

1 answer:

4 0

A histogram is like a bar graph without gaps between the rectangles. So you first create a bar graph with your labels and title, then you get rid of the gaps between the rectangles.

You might be interested in

How do you invert and multiply to divide 2/3÷4

Ira Lisetskai [31]

2/3 ÷ 4

2/3 ÷ 4/1

We invert the 4/1 to 1/4 and multiply out.

2/3 × 1/4

= 1/3 × 1/2 2 into 4 is 2.

= 1/(3 × 2)

= 1/6

Hope this helps.

4 0

2 years ago

What is the Value of x in the figure below in this diagram ABD ~ CAD

Sliva [168]

Answer:

Step-by-step explanation:

7 0

1 year ago

A civil engineer is analyzing the compressive strength of concrete. Compressive strength is normally distributed with σ = 31.62

AysviL [449]

Answer:

A sample size of at least 737 specimens is required.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.99}{2} = 0.005$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.005 = 0.995$ , so $z = 2.575$

Now, find the width M as such

$M = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

In this problem, we have that:

$M = 3, \sigma = 31.62$

So:

$M = z*\frac{\sigma}{\sqrt{n}}$

$3 = 2.575*\frac{31.62}{\sqrt{n}}$

$3\sqrt{n} = 81.4215$

$\sqrt{n} = 27.1405$

$n = 736.60$

A sample size of at least 737 specimens is required.

6 0

2 years ago

Which conic section results from the intersection of the plane and the double-napped cone shown in the figure? circle, parabola,

Hatshy [7]

Answer:

<h2>Ellipse</h2><h3>I'm Really sure!</h3><h3>Brainliest please!</h3>

6 0

2 years ago

Read 2 more answers

The dot plot shows the time trials of an experiment. Each number on the dot plot represents the amount of time, in seconds, it t

goblinko [34]

123455677789990000000oo999900009999999999999

8 0

2 years ago